R K Engg manufactures a range of circlips that are marketed by Madras Cupprum Metals. These are generally used for restraining the axial movement of components or shafts. Circlips are used particularly where space restrictions are applicable and also in small mechanisms. These are generally made of suitable high carbon steel such as C80 of IS 1570-1961 or EN 42. The circlips are hardened and tempered.